Ceramic tumbler



FIG. 1 is a bottom, front, and right side perspective view of a ceramic tumbler showing our new design;

FIG. 2 is a vertical cross-sectional view thereof, taken through the center of the article;

FIG. 3 is a vertical cross-sectional view thereof, taken through the center of the article, with the article having been rotated about the center of the article through 90 degrees from the view of FIG. 2;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a ceramic tumbler, as shown and described. 